1011404550025 has 6 divisors (see below), whose sum is σ = 1254141642062. Its totient is φ = 809123640000.

The previous prime is 1011404550017. The next prime is 1011404550031. The reversal of 1011404550025 is 5200554041101.

It can be written as a sum of positive squares in 3 ways, for example, as 293404222224 + 718000327801 = 541668^2 + 847349^2 .

It is not a de Polignac number, because 1011404550025 - 2³ = 1011404550017 is a prime.

It is a super-2 number, since 2×1011404550025² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011404549975 and 1011404550002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20228090976 + ... + 20228091025.

Almost surely, 2^{1011404550025} is an apocalyptic number.

It is an amenable number.

1011404550025 is a deficient number, since it is larger than the sum of its proper divisors (242737092037).

1011404550025 is an equidigital number, since it uses as much as digits as its factorization.

1011404550025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40456182011 (or 40456182006 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 1011404550025 its reverse (5200554041101), we get a palindrome (6211958591126).

The spelling of 1011404550025 in words is "one trillion, eleven billion, four hundred four million, five hundred fifty thousand, twenty-five".